{"code":"I71.00","type":"code","title":"Dissection of unspecified site of aorta","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[", if applicable:","syphilitic aortic aneurysm (A52.01)","traumatic aortic aneurysm (S25.09, S35.09)"],"excludes1":[],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Dissection of unspecified site of aorta is a billable ICD-10-CM diagnosis code (I71.00). Code first: , if applicable:; syphilitic aortic aneurysm (A52.01); traumatic aortic aneurysm (S25.09, S35.09).","officialDefinition":"Dissection of unspecified site of aorta is a billable ICD-10-CM diagnosis code (I71.00). Code first: , if applicable:; syphilitic aortic aneurysm (A52.01); traumatic aortic aneurysm (S25.09, S35.09).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}